Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 27236Generated: October 26, 2026

Water → Phthalimide

https://huagongshe.com/reaction/27236

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantTryptamineHCID 1150—
ReactantPhthalic AnhydrideHCID 6811—
SolventTolueneHCID 1140—
ProductPhthalimideHCID 6809—

Reaction Steps

A solution of 3.20 g (20.0 m mol) of tryptamine and 3.10 g (20.0 m mol) of phthalic anhydride in 40 ml of toluene was refluxed under a Dean-Stark water separator for 12 h. Cooling, filtration and concentration of the filtrate gave a crude phthalimide which was recrystallized from ethanol to produce 4.85 g (84%), of phthalimide, mp 164°-165° C.; reported 164°-165° C.3

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04220774
Source datasetuspto-grants-1980_09
ORD IDord-beb9b7be15ea42c4b1a6c19e8885cdad
Source noteuspto-grants-1980_09